Witness in I-20 Girl case gives inside look into what he saw in 2000

Darlington County's chief prosecutor is close to a final decision in the 14-year-old homicide case of the Interstate 20 girl. WIS started its investigation into the missing person's case that turned homicideMore >>

Darlington County's chief prosecutor is close to a final decision in the 14-year-old homicide case of the Interstate 20 girl.More >>

COLUMBIA, SC (WIS) -

The lone
witness Darlington County investigators said may have placed John Wayne Boyer
and Michelle Haggadone together hours before her murder, gives WIS an inside
look at his account of the I-20 Girl case. Jonathan Threatt met with North
Carolina investigators in 2011 and gave a statement.

Former Darlington County Sheriff's
Office Captain Andy Locklair accused Boyer of killing Haggadone in July 2000
and dumping her body at an Interstate 20 rest area for truckers. Locklair
called Boyer a serial killer during a 2011 press conference. A WIS
investigation found that Locklair never got a murder warrant on Boyer until
days before our investigation aired on April 9. Locklair resigned eight days
after getting the warrant. Sheriff Wayne Byrd said Locklair failed to follow
procedure and "subsequently attempting to cover up that fact," Byrd wrote in an
April 4 press release.

Threatt told WIS he drove a tractor
trailer for Twisdale Trucking in Leland, N.C. hauling nails and fasteners to
Texas. Threatt told investigators he was driving with Boyer on a trip to Texas
in July of 2000 when he spotted a Volkswagen and a woman stopped along
Interstate 95 in Dillon County. Threatt said Boyer "slammed on brakes" and pulled
over near the woman. Threatt said he continued on his route and didn't see
Boyer until two days later at their drop off in Texas.

Based on that information Threatt
gave investigators during an interview in 2011, Darlington County thought that
woman may have been Haggadone and used Threatt's account to support the murder
warrant against Boyer. Investigators have not re-interviewed Threatt as of this
report. Darlington County also has not served that murder warrant on Boyer as
of this report.

Threatt went on the record in
October with WIS, giving an account of what went down the day investigators
think Haggadone was murdered. The following video is Threatt in his own words.

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